Accessible alternatives to a drag and drop exercise?

I have a page where the learner needs to match three terms to their definitions. At the moment, it's a drag and drop exercise, but that's not keyboard accessible.

I have a button that says click here if you have accessibility needs which shows them an alternative slide which just has the information, but that feels like a cop out.

I considered making the terms drop down lists instead for a keyboard accessible way to have the same exercise, but Storyline doesn't seem to have that functionality built in? I have pre-built sliders, dials, hot spots, etc but not drop down lists? Seems like a really bizarre oversight.

I figured I'd reach out to the community, see what options might be available. No doubt I'm not the first (or last) person to encounter this issue. How have you tackled this in the past?